US3332887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for the production of olefinic oxides
Assignee: Montedison SpA
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Filing: 1963-03-18
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Granted: 1967-07-25
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Endler Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:40
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/024; B01J23/00; B01J23/38; B01J23/54; B01J23/66; C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/04; C07D301/08; C07D301/10; Y; Y10; Y10S; Y10S502/00; Y10S502/506; Y10S502/513
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PROCESS FOR PREPARING A SILVER CATALYST SUITABLE FOR THE CATALYTIC OXIDATION OF OLEFINS, WHICH COMPRISES COPRECIPITATING A MIXTURE OF CARBONATES FROM AN AQUEOUS SOLUTION OF A SILVER SALT, AN ALKALINE-EARTH SALT AND A SALT SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM SALTS, FIXING THE COPRECIPITATE ON A GRANULAR, POROUS REFRACTORY CARRIER, AND THEREAFTER DECOMPOSING THE COPRECIPITATE BY HEATING.
Claim 2
Dependent Claim
61 words
A PROCESS FOR PREPARING A SILVER CATALYST SUITABLE FOR THE CATALYTIC OXIDATION OF OLEFINS, WHICH COMPRISES COPRECIPITATING A MIXTURE OF CARBONATES FROM AN AQUEOUS SOLUTION OF A SILVER SALT, AN ALKALINE-EARTH SALT AND A SALT SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM SALTS, FIXING THE COPRECIPITATE ON A GRANULAR, POROUS REFRACTORY CARRIER, AND THEREAFTER DECOMPOSING THE COPRECIPITATE BY HEATING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |